Abstract

ObjectivesPediatric patients born with single functional lung can be associated with symptomatic airway abnormalities. Management of such patients is not only technically demanding but is also ethically challenging. This study reports our experience of managing symptomatic airway abnormalities in pediatric patients with congenital single functional lung. MethodsObservational retrospective cohort study performed at a tertiary children’s hospital from January 2001 to September 2017. All children (0 to 18 years old) with congenital single functional lung (agenesis and hypoplasia) presenting with symptomatic airway abnormalities (long segment congenital tracheal stenosis and tracheomalacia) and requiring surgical interventions were included in the study. Children with single functional lung secondary to non-congenital causes were excluded. ResultsA total of 16 patients with single functional lung (agenesis=8 and hypoplasia=8) and airway abnormalities (long segment congenital tracheal stenosis=12 and tracheomalacia =4) were eligible for the study. Lung abnormalities were common on the right side (n = 10, 62.5%). Associated abnormalities (cardiac and non-cardiac) were seen in 11 patients (68.8%). Surgical interventions for airway abnormalities, alone or in combination, included slide tracheoplasty (n=12), aortopexy with or without pericardiopexy (n=7), excision of rudimentary lung (n=4) and placement of intrathoracic tissue expanders to reposition the mediastinum (n=3). Nine patients (56.3%) underwent a one-stage repair while staged repairs (airway and cardiac) were performed in 7 (43.7%). Fourteen patients (87.5%) survived to hospital discharge. Of the survivors, 9 (64.2%) had stable airways not requiring respiratory support at home. ConclusionManagement of pediatric patients with airway abnormalities in the setting of congenital single functional lung is feasible with acceptable surgical outcomes. This is facilitated by staged repairs and repositioning of mediastinum before a definitive airway repair in patients with significant comorbidities. Treatment should not be deferred to these patients if there are no obvious contraindications. Type of StudyRetrospective Case Control Study Level of EvidenceLevel III.

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